性别比非常接近1：1，而且采取控制措施力求维持均衡。
The gender ratio is very close to 1:1 and control measures have endeavored to maintain parity.
有一种干预方法，即食用低热量但营养均衡的饮食，在很多动物身上都取得了令人难以置信的效果，它能延长寿命、维持身体健康。
One intervention, consumption of a low-calorie yet nutritionally balanced diet, works incredibly well in a broad range of animals, increasing longevity and prolonging good health.
鉴于玩具行业有周期性起落的特性，集团的策略是维持一个更均衡的产品组合。
Given the cyclical nature of the toys industry, it is the groups strategy to maintain a more balanced product portfolio.
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